US8302664B2 - Strand guide, in particular for a continuous casting installation for steel slabs - Google Patents

Strand guide, in particular for a continuous casting installation for steel slabs Download PDF

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Publication number
US8302664B2
US8302664B2 US12/736,736 US73673609A US8302664B2 US 8302664 B2 US8302664 B2 US 8302664B2 US 73673609 A US73673609 A US 73673609A US 8302664 B2 US8302664 B2 US 8302664B2
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US
United States
Prior art keywords
strand
guide
guide rod
frame
segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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US12/736,736
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English (en)
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US20110056803A1 (en
Inventor
Axel Stavenow
Axel Weyer
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SMS Siemag AG
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SMS Siemag AG
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Assigned to SMS SIEMAG AKTIENGESELLSCHAFT reassignment SMS SIEMAG AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STAVENOW, AXEL, WEYER, AXEL
Publication of US20110056803A1 publication Critical patent/US20110056803A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/208—Controlling or regulating processes or operations for removing cast stock for aligning the guide rolls

Definitions

  • the invention relates to a strand guide, in particular for a steel slab continuous casting installation having a plurality of segments which support a strand on two opposite sides with support elements, wherein the support elements are arranged in a lower frame and an upper frame and wherein the frames are formed for guiding the strand in a conveying direction.
  • a strand guide for a continuous casting installation of this type is disclosed in EP 0 963 263 B1.
  • the strand guide has a plurality of support segments which form a casting bow having opposite rows of guide and drive rollers.
  • the rollers are supported in an upper frame and a lower frame. At one end of a frame, there are arranged two guide rods equidistantly spaced from the central axis.
  • This connection guide rod concept of segments is used in continuous casting installations, i.e., for strand guidance.
  • the connection guide rods are arranged in a segment on each side of the segment as guide means of the upper frame.
  • FIGS. 2 and 3 show a plan view and a side view of a segment of a strand guide.
  • the segment 2 of the strand guide has a lower frame 8 and an upper frame 9 which are provided with respective support, elements in form of rollers 6 and 7 .
  • the rollers 6 which are arranged in the lower frame 8 , guide the lower side 4 of the cast strand 3
  • the rollers 7 which are arranged in the upper frame 9 , guide, correspondingly, the upper side 5 of the cast strand.
  • the upper frame 9 is connected with the lower frame 8 by two guide rods 11 and 12 which displace the upper frame 9 relative to the lower frame 8 .
  • connection guide rods when connection guide rods are used, consists in that the support of the strand by rollers after mounting of the segment is not changeable which is unfavorable with regard to distribution of the strand support with rollers or bending points or straightening points dependent on the cast thickness format. Further, a so-called bulging effect can be easily produced in the meniscus and which is possible, at fixed roller spacings and roller positions, as a result retroactive effect of strand displacement.
  • a further negative effect of known installations consists in that mounting and dismounting of a segment, which is required from time to time, is problematic because of space ratios, only little place is available for removal or installation of a frame.
  • an object of the present invention is to so improve a strand guide of the type described above so that the above-mentioned drawbacks are eliminated or prevented.
  • a better strand support with rollers should become possible to achieve a better support, bending and/or straightening condition. Further, bulging effect should be eliminated. Mounting and dismounting conditions of segments can likewise be improved. Finally, it should be possible to achieve a precise alignment of the upper and lower frames with simple means.
  • the solution which permits to achieve the object of the invention, is characterized in that means is available with which the upper and lower frames can be adjusted relative to each other in the conveying direction.
  • This means includes, according to an advantageous embodiment, at least two bar-shaped guide rods which are secured, respectively, to the upper and lower frames, with the guide rods each having an actuator for changing the effective length of the guide rod.
  • the actuator can be integrated in the guide rod between opposite ends of the guide rod. Alternatively, it is also possible to arrange the actuator in the connection region of the guide rod with the frame.
  • the actuator is formed as a hydraulic piston-cylinder system.
  • the actuator it is also possible to form the actuator as a mechanical length-adjusting element.
  • the at least two actuators in the at least two guide rods can be connected with control or regulation means for independent control of an actuator.
  • control or regulation means for independent control of an actuator.
  • the support elements advantageously are formed as driven and non-driven rollers rotatably supported in a frame.
  • the segments advantageously form a casting bow. They can, however, be used in vertical and horizontal strand guide regions.
  • a predetermined position of the upper rollers relative to the lower rollers which is determined by a predetermined length of the guide rod, can be variably changed.
  • a variable displacement of strand support points of the upper rollers relative to the lower rollers is possible. This results in a desired distribution or displacement of strand support points of the rollers, among others, bending points or straightening points dependent, e.g., on the cast thickness format. Thereby, an improved support, bending or straightening condition can be achieved.
  • the mounting and dismounting conditions of segments or their frames can be noticeably improved.
  • the upper frames of adjacent segments i.e., the upper frames of segments located in front of or behind a mountable or dismountable segment, can displace these segments by a change of the guide rod length and, in effect, in such a position that more space is available for removing or inserting a frame of a segment located between both adjacent segments. This is particularly very advantageous for bending, deflecting and straightening segments.
  • FIG. 1 a side schematic view of a casting bow of a strand guide of a continuous casting machine
  • FIG. 2 a plan view of a segment of the strand guide according to the state of the art
  • FIG. 3 a side view of a segment of the strand guide according to FIG. 2 , i.e., according to the state of the art;
  • FIG. 4 in the view according to FIG. 3 , a segment of the strand guide according to an embodiment of the present invention
  • FIG. 5 a and FIG. 5 b the segment according to FIG. 4 in a normal position of segment frames relative to each other ( FIG. 5 a ) and in a displaced position of the upper frame relative to the lower frame ( FIG. 5 b ), wherein the segments are shown in a position in which they are located beneath each other and are aligned;
  • FIG. 6 a and FIG. 6 b three adjacent segments of the strand guide in a normal position of segment frames relative to each other ( FIG. 6 b ), and in a mounting or dismounting position ( FIG. 6 b ), wherein the segments are shown in a position in which they are located beneath each other and are aligned.
  • FIG. 1 shows a casting bow of a strand guide 1 of a continuous casting machine.
  • the casting bow consists of a number of segments 2 which are so positioned relative to each other that a bow-shaped path for a cast strand (not shown here) is formed for deflecting it behind a mold from a vertical to a horizontal.
  • Each segment 2 has, as essential components, two frames 8 and 9 , namely, a lower frame 8 and an upper frame 9 in which support elements 6 , 7 in form of rollers are mounted.
  • the rollers 6 , 7 can be driven or not driven, with a frame 8 , 9 being able to contain both types of rollers.
  • a path in displacement direction F is defined for the cast strand.
  • FIG. 4 The construction of a segment 2 according to an embodiment of the invention is shown in FIG. 4 . It is provided that the upper frame 9 is displaced relative to the lower frame 8 by two, sidewisely arranged, guide rods 11 and 12 , for illustration of which, reference is made to the preceding FIG. 2 and FIG. 3 .
  • means 10 is available with which the upper and lower frames 8 , 9 can be adjusted relative to each other in the conveying F.
  • this is realized by a respective actuator 13 that is integrated in the bar-shaped guide rods 11 and 12 .
  • it is shown as a piston-cylinder unit arranged in the guide rod 11 , 12 .
  • the guide rods 11 , 12 have and effective length L that defines the distance between opposite ends 14 and 15 of the guide rod 11 , 12 at which it is pivotally attached to the frame.
  • FIG. 5 a the segment is seen in a normal position, i.e., the upper frame 9 is located relative to the lower frame 8 in an initial position, i.e., the frames 8 , 9 are positioned one above the other and are aligned.
  • the displaced position can, meanwhile, be adjusted, as shown in FIG. 5 b .
  • the effective length of the guide rod 11 , 12 is here increased with respect to FIG. 5 a which results in displacement of the upper frame 9 relative to the lower frame 8 by a distance x in the conveying direction (at the same thickness of the strand 3 ). It is shown that the displacement of the upper frame 9 by a distance x in the conveying direction took place (in FIG. 5 b , to the right); in the same way, by shortening the effective length of the guide rod 11 , 12 , the displacement of the upper frame 9 in a direction opposite the conveying direction takes place (in FIG. 5 b , to the left).
  • FIGS. 6 a and 6 b A possible use of this effect is illustrated in FIGS. 6 a and 6 b .
  • two adjacent segments 2 are shown schematically in a normal position ( FIG. 6 a ) and in a mounting or dismounting position ( FIG. 6 b ).
  • the upper frame 9 of the mentioned (left) segment 2 is displaced in a direction opposite the conveying direction F, i.e., the upper frame 9 of this segment 2 is displaced to the left by a displacement distance x, and the guide rods 11 , 12 are shortened by the actuators 13 .
  • the frame 9 of the following (right) segment 2 is displaced in the conveying direction F, i.e., the upper frame 9 of this segment 2 is displaced to the right by a displacement distance x, and the guide rod 11 , 12 has its length increased by the actuator 13 .
  • the upper frame 9 of the left segment 2 will be displaced to the left by a displacement 16
  • the upper frame 9 of the right segment 2 will be displaced to the right by displacement 17 .
  • the integration of the length adjustability of the guide rods 11 , 12 provides the above mentioned advantages.
  • the adjustment of the length L of the guide rods 11 , 12 can be carried out on each side of the segment 2 independently from each other, i.e., in particular, differently, so that a side-specific alignment of the upper frame 9 relative to the lower frame 8 can be carried out.
  • any system can be used.
  • a hydraulic cylinder-piston system is used.
  • an electrical system e.g., a threaded spindle or any other mechanical drive and an electric motor for driving the same.
  • the actuator 13 can be arranged in the guide rod 11 , 12 , as shown in the discussed embodiment, between both ends 14 , 15 of the guide rod. However, it is equally possible to provide the actuator 13 in an end-side region of the guide rod 11 , 12 , i.e., in the connection region of the guide rod 11 , 12 with a respective frame 8 , 9 .
  • the adjustment of the length L of the guide rod 11 , 12 causes a (parallel) displacement of the roller track of the upper frame 9 relative to the roller track of the lower frame 8 .
  • the displacement takes place, as it has already been discussed above, in the casting direction or in an opposite direction.
  • the adjustment can be used (at asymmetrical actuation of both actuators 13 of both guide rods 11 and 12 ) for a side-specific alignment of the upper frame 9 relative to the lower frame 8 .
  • the adjustment of the effective length of the guide rod 11 , 12 can be carried or using control or regulation means.
  • position regulation of the hydraulic cylinder, of a hydraulic cylinder with internal or external stops, of a pre-stressed hydraulic cylinder (e.g., with plate springs), and/or of a hydraulic-piston-cylinder can take place.
  • the invention particularly advantageously can be used in slab or thin slab casting installations with vertical, bent, arched, straight and horizontal segments.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Framework For Endless Conveyors (AREA)
US12/736,736 2008-05-28 2009-05-26 Strand guide, in particular for a continuous casting installation for steel slabs Expired - Fee Related US8302664B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102008025548.3 2008-05-28
DE102008025548 2008-05-28
DE102008025548A DE102008025548A1 (de) 2008-05-28 2008-05-28 Strangführung, insbesondere für eine Stahlbrammen-Stranggießanlage
PCT/EP2009/003711 WO2009144001A1 (de) 2008-05-28 2009-05-26 Strangführung, insbesondere für eine stahlbrammen-stranggiessanlage

Publications (2)

Publication Number Publication Date
US20110056803A1 US20110056803A1 (en) 2011-03-10
US8302664B2 true US8302664B2 (en) 2012-11-06

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US12/736,736 Expired - Fee Related US8302664B2 (en) 2008-05-28 2009-05-26 Strand guide, in particular for a continuous casting installation for steel slabs

Country Status (12)

Country Link
US (1) US8302664B2 (uk)
EP (1) EP2285511A1 (uk)
JP (1) JP2011520622A (uk)
KR (1) KR20100126581A (uk)
CN (1) CN102046309A (uk)
CA (1) CA2722086C (uk)
DE (1) DE102008025548A1 (uk)
RU (1) RU2453396C1 (uk)
TW (1) TW201014663A (uk)
UA (1) UA97752C2 (uk)
WO (1) WO2009144001A1 (uk)
ZA (1) ZA201007030B (uk)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11110512B2 (en) 2016-12-13 2021-09-07 Primetals Technologies Austria GmbH Method and device for regulating a continuous casting machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014202995A1 (de) 2013-09-16 2015-03-19 Sms Siemag Ag Rahmen für ein Strangführungssegment
CN106166603B (zh) * 2016-08-29 2018-06-19 中国重型机械研究院股份公司 有色轻金属连续铸造扁锭诱导装置
KR101908802B1 (ko) * 2016-12-19 2018-10-16 주식회사 포스코 연속주조용 세그먼트 및 이를 포함하는 연속주조장치

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB964658A (en) 1962-06-29 1964-07-22 Demag Ag Bending roll assembly for a steel or metal bar contiouous casting plant
US3550675A (en) * 1967-01-27 1970-12-29 Schloemann Ag Continuous casting plant having adjustable strand guide means
US3613771A (en) 1968-03-01 1971-10-19 Olsson Ag Erik Open-ended mold-casting apparatus
DE2036266A1 (en) 1970-07-22 1972-01-27 Schloemann AG, 4000 Düsseldorf Continuous casting appts - with uniform ingot cooling
US3707184A (en) * 1969-05-20 1972-12-26 Concast Ag Withdrawal and straightening apparatus for continuous casting
US4058154A (en) * 1976-09-23 1977-11-15 Concast Incorporated New York Guiding and supporting means for continuously cast metal strand
US4290478A (en) 1978-06-14 1981-09-22 Voest-Alpine Aktiengesellschaft Guiding stand to be used in a continuous casting plant
US4316494A (en) * 1979-03-07 1982-02-23 Voest-Alpine Aktiengesellschaft Supporting and guiding stand arrangement to be used in a bow-type continuous casting plant
JPS6083758A (ja) 1983-10-17 1985-05-13 Sumitomo Metal Ind Ltd 連続鋳造鋳片の支持装置
US6234301B1 (en) 1997-01-27 2001-05-22 Mannesmann Ag Strand guide, specially for a slab continuous casting installation
US20020070000A1 (en) * 2000-02-19 2002-06-13 Axel Weyer Method and device for casting prefabricated products in a continuous casting device
DE10225924A1 (de) 2001-06-12 2003-01-02 Voest Alpine Ind Anlagen Strangführung für eine Stranggießanlage
US6568459B2 (en) * 1999-07-16 2003-05-27 Mannesmann Ag Process and apparatus for casting a continuous metal strand
US6568460B1 (en) * 1999-04-10 2003-05-27 Sms Schloemann-Siemag Aktiengesellschaft Method and apparatus for adjusting the profile of a continuously cast slab, particularly of a thin slab
US20040026066A1 (en) * 2000-08-26 2004-02-12 Werner Rahmfeld Continuous casting installation comprising a soft reduction section

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114772A1 (de) 1981-04-11 1982-12-02 Bayer Ag, 5090 Leverkusen Polyalkylenterephthalat / pfropfpolymerisat-mischungen
US4950986A (en) * 1988-06-27 1990-08-21 Combustion Engineering, Inc. Magnetic proximity sensor for measuring gap between opposed refiner plates
DE19511113A1 (de) * 1995-03-25 1996-09-26 Schloemann Siemag Ag Strangführung einer Stranggießanlage für Dünnbrammen
AT3953U3 (de) * 2000-06-02 2001-04-25 Voest Alpine Ind Anlagen Strangführungselement und strangführungssegment mit integriertem strangführungselement

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB964658A (en) 1962-06-29 1964-07-22 Demag Ag Bending roll assembly for a steel or metal bar contiouous casting plant
US3550675A (en) * 1967-01-27 1970-12-29 Schloemann Ag Continuous casting plant having adjustable strand guide means
US3613771A (en) 1968-03-01 1971-10-19 Olsson Ag Erik Open-ended mold-casting apparatus
US3707184A (en) * 1969-05-20 1972-12-26 Concast Ag Withdrawal and straightening apparatus for continuous casting
DE2036266A1 (en) 1970-07-22 1972-01-27 Schloemann AG, 4000 Düsseldorf Continuous casting appts - with uniform ingot cooling
US4058154A (en) * 1976-09-23 1977-11-15 Concast Incorporated New York Guiding and supporting means for continuously cast metal strand
US4290478A (en) 1978-06-14 1981-09-22 Voest-Alpine Aktiengesellschaft Guiding stand to be used in a continuous casting plant
US4316494A (en) * 1979-03-07 1982-02-23 Voest-Alpine Aktiengesellschaft Supporting and guiding stand arrangement to be used in a bow-type continuous casting plant
JPS6083758A (ja) 1983-10-17 1985-05-13 Sumitomo Metal Ind Ltd 連続鋳造鋳片の支持装置
US6234301B1 (en) 1997-01-27 2001-05-22 Mannesmann Ag Strand guide, specially for a slab continuous casting installation
US6568460B1 (en) * 1999-04-10 2003-05-27 Sms Schloemann-Siemag Aktiengesellschaft Method and apparatus for adjusting the profile of a continuously cast slab, particularly of a thin slab
US6568459B2 (en) * 1999-07-16 2003-05-27 Mannesmann Ag Process and apparatus for casting a continuous metal strand
US20020070000A1 (en) * 2000-02-19 2002-06-13 Axel Weyer Method and device for casting prefabricated products in a continuous casting device
US20040026066A1 (en) * 2000-08-26 2004-02-12 Werner Rahmfeld Continuous casting installation comprising a soft reduction section
DE10225924A1 (de) 2001-06-12 2003-01-02 Voest Alpine Ind Anlagen Strangführung für eine Stranggießanlage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11110512B2 (en) 2016-12-13 2021-09-07 Primetals Technologies Austria GmbH Method and device for regulating a continuous casting machine

Also Published As

Publication number Publication date
CA2722086C (en) 2013-04-30
RU2453396C1 (ru) 2012-06-20
CA2722086A1 (en) 2009-12-03
ZA201007030B (en) 2011-06-29
JP2011520622A (ja) 2011-07-21
KR20100126581A (ko) 2010-12-01
WO2009144001A1 (de) 2009-12-03
TW201014663A (en) 2010-04-16
DE102008025548A1 (de) 2009-12-03
CN102046309A (zh) 2011-05-04
EP2285511A1 (de) 2011-02-23
UA97752C2 (uk) 2012-03-12
US20110056803A1 (en) 2011-03-10

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